Valve with corrosion resistant sleeve

A corrosion-resistant sleeve within the valve inlet, made of materials like stainless steel, addresses corrosion issues in pressure vessel valves, enabling cost-effective manufacturing by using cheaper materials for the valve body.

WO2025254781A1PCT designated stage Publication Date: 2025-12-11WORTHINGTON ENTERPRISES INC
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Patent Information

Application Number
PCT/US2025/029000
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-03
Filing Date
2025-05-13
Publication Date
2025-12-11

AI Technical Summary

Technical Problem

Valves installed on pressure vessels are prone to corrosion and adverse reactions when exposed to the materials stored within, leading to issues like coagulation and discoloration, and existing corrosion-resistant materials are costly.

Method used

A valve design featuring a sleeve made of corrosion-resistant material, such as stainless steel or aluminum, inserted into the inlet of the valve body, which is deformed to create a valve seat, while the body can be made of a less expensive material like carbon steel.

Benefits of technology

Provides cost-effective corrosion resistance by protecting the inlet portion of the valve from the contents of the pressure vessel, while allowing the use of less expensive materials for the valve body.

✦ Generated by Eureka AI based on patent content.

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Abstract

A valve has a body (12) having an inlet, an outlet, and a chamber. The inlet is in fluid communication with the chamber and the chamber is in fluid communication with the outlet. The valve has a stem (14) designed to be received in the chamber. The valve stem has a valve surface (64). A corrosion-resistant or nonreactive sleeve (16) is inserted into the inlet. The sleeve has a first end and a second end opposite the first end and a bore (74) that extends from the first end to the second end. When the sleeve is inserted into the inlet, the second end extends into the chamber and is configured to be deformed within the chamber to secure the sleeve in the inlet. The deformed second end defines a valve seat (86) configured to engage the valve surface of the stem.
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Citation Information

Patent Citations

  • replaceable valve seat

    DE858055C

  • High pressure soft seat valve

    GB1390964A

  • Valve device

    JP1998274343A

  • Faucet

    US1985382A

  • US202463655146P